Alright, let's work through 6594 times 1305 step by step
6594 × 1305 = 1305 × (6594)
+ 1305 × 4 what gives us 5220
+ 1305 × 90 that results in 117450
+ 1305 × 500 resulting in 652500
+ 1305 × 6000 that results in 7830000

= 8605170
